CSEMP assessment of CB138 in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 144.14 | 145.43 | -69.07 | 138.14 | | | |
| linear | 2 | 145.59 | 148.06 | -68.80 | 137.59 | 0.545 | 1 | 0.4605 |
| smooth (df = 2) | 3 | 146.58 | 150.74 | -68.29 | 136.58 | 1.019 | 1 | 0.3127 |
| smooth (df = 3) | 4 | 146.91 | 153.46 | -67.46 | 134.91 | 1.660 | 1 | 0.1976 |
| smooth (df = 4) | 5 | 146.07 | 155.87 | -66.04 | 132.07 | 2.843 | 1 | 0.0918 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2018 | 0.4075 | 0.6152 | 0.20764 | 0.27829 | 0.746 | 0.4671 |
| last 20 years | 1999 | 2018 | 0.4075 | 0.6152 | 0.20764 | 0.27829 | 0.746 | 0.4671 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 1.85 | 0.15 | -2.5123 | 0.1501 | -16.735 | 1.0000 |
| EAC | 1.85 | 7.90 | 1.4517 | 0.1501 | 9.670 | <0.0001 |
Raw data with supporting information
__sdmn_cb138_au.jpg "Raw data with supporting information for assessment of CB138 in sediment at inner (Firth of Clyde)")
Raw data with assessment
__sdmn_cb138_da.jpg "Raw data with assessment of CB138 in sediment at inner (Firth of Clyde)")
Assessment plot
__sdmn_cb138_as.jpg "Assessment plot for CB138 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB138 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB138 in sediment at inner (Firth of Clyde)")
Related pages
